In communication, a smile is usually _____ strong sign of a friendly and _____ open attitude.
#8990
A
the; /
B
a; an
C
a; /
D
the; an
推荐题目
Sending man into ______ space is not _____dream for human beings any longer.
#8668
A
/; a
B
the; a
C
the; the
D
/; the
As birthplace of Huaxia civilization，Xi' an is city with a long history and abundant cultural relics.
#8741
A
the；a
B
a；a
C
/;a
D
the；／
Engineering is ______ challenging course of study that requires ______ thoroughunderstanding of mathematics and science.
#8168
A
the; a
B
a; the
C
不填；不填
D
a; a
I ordered a pizza and salad. The pizza was nice but salad was terrible.
#9068
A
不填；the
B
the; the
C
a; 不填
D
a; a
Now ______ good many old people are also fond of playing games on ______ internet.
#9400
A
the; 不填
B
a; the
C
the; the
D
a; 不填